Journal of East China Normal University(Natural Sc ›› 2011, Vol. 2011 ›› Issue (1): 141-147.

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Grey relational analysis of aquatic plants’ physiological responses to malodorous water treatment

ZHANG Dan, HE Yan, HUANG Min-sheng, LU Xiao-ming   

  1. School of Resources and Environment Science, East China Normal University, Shanghai 200062, China
  • Received:2010-08-01 Revised:2010-11-01 Online:2011-01-25 Published:2011-01-25
  • Contact: HUANG Min-sheng

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Abstract: The grey relational analysis was initiated to investigate the relationships between the physiological properties of aquatic plants and the performances of the bio-eco-technology for the treatment of malodorous rivers in Shanghai. The main objective of this research was to provide scientific explanation for the water purification mechanisms of the bio-eco-technology. The results indicated that the priority response order of the plants physiological properties for COD and NH4+ -N removal was POD＞CAT＞Chla＞SP＞Chlb, indicating that the microbial degradation could be mainly responsible for the removal of COD and NH4+ -N. However, the priority associated grade of the plant physiological characteristic for TP removal was Chlb＞SP＞Chla＞CAT＞POD, demonstrating that the adsorption of aquatic plants played a dominant role in removing total phosphrous from malodorous black water.

Key words: POD, CAT, SP, Chl, grey correlation, POD, CAT, SP, Chl

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